Store Extra Energy In Liquid Air

The UK's Institution of Mechanical Engineers has announced that liquid air can be used to store excess energy generated from renewable sources. For example, wind farms generate power at night, but since demand is low at that time, the energy may be wasted.

When demand increases the next day, the liquid air can be warmed to drive a turbine, thereby giving the energy back. Engineers say the process can achieve an efficiency of up to 70%.

The process follows a number of stages:
  1. "Wrong-time electricity" is used to take in air, remove the CO2 and water vapour (these would freeze otherwise)
  2. the remaining air, mostly nitrogen, is chilled to -190C (-310F) and turns to liquid (changing the state of the air from gas to liquid is what stores the energy)
  3. the liquid air is held in a giant vacuum flask until it is needed
  4. when demand for power rises, the liquid is warmed to ambient temperature. As it vaporizes, it drives a turbine to produce electricity - no combustion is involved.
Highview believes that, produced at scale, their kits could be up to 70% efficient, and IMechE agrees this figure is realistic.

This work derives from the work of Britainís Peter Dearman, who invented a liquid air engine to power vehicles as seen in the following video.

Science fiction fans of yesteryear would not find this idea hard to believe. The idea of storing energy in liquid air and then using it to power engines was used in Buck Rogers in the 25th Century.


(Buck Rogers in the 25th Century)

Via BBC. Thanks to Winchell Chung of Project Rho for the tip and the reference on this story.

Scroll down for more stories in the same category. (Story submitted 10/2/2012)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Engineering ")

Galaxy Note 7 Kill Switch?
Keep right on quoting regulations, Mr. Savvik.

Solar Geoengineering Spray Cools, Heals
'the maintenance posts fire jets of tailored algae into the air stream.' - Niven and Pournelle, 1974.

Nuclear Batteries Based On Diamonds Last Millennia
'they just package it and ship it around to wherever people want it...' - Robert Heinlein, 1982.

MIT Researchers Predict The Future From Still Photos
'What I have in this camera is not a record of what you did just now but what will go on here in the next half hour...'- Philip K. Dick, 1964.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

ElliQ Robot To Help Israel's Grandmas And Grandpas
'The robant and the tiny old woman entered the control room slowly...'

EU Debates Kill Switches For Robots
'I have a mechanism which our autofac on Mars builds as an... emergency safety...'

Scotland Set To Implement Basic Income
'Earned by just being born.'

Sales Robots More Persistent Than Humans
'Robot-salesmen were everywhere, gesturing,,, shrilling...'

AI Identifies Suicidal Behavior With 93 Percent Accuracy
'...He padded into the living room, and seated himself by the suitcase; he opened it, clicked switches, and turned on Dr. Smile.'

Razer Project Valerie Laptop Unfurls
'A paper thin polycarbon screen unfurled silently...'

Can Virtual Reality help People Cope With Pain?
Research is promising.

Dust Movement On The Moon, Saturn's Rings Solved
'...The dust normally on the surface picks up and keeps a charge.'

Largest Micro-Drone Swarm Release Successful
'... Programmed to hang in space in a hexagonal grid pattern.'

Robot Motion Planning 10K Times Faster
'The robot crab... fired a burst of light, then froze...'

Reconfigured Graphene 10X Strong, 5 Percent Dense, As Steel
'...It was made of Alohydrolium, which is the lightest of all metals.'

Axiom - The World's First Private Space Station?
'So Webb Foster had built his space laboratory... It was a great crystal sphere, a thousand feet in diameter.'

DataTraveler Ultimate Generation 2 Terabyte Flashdrive
'A man or woman could carry AIs or complete planetary data spheres...'

HyperFace Aims To Foil Facial Recognition
'...A million and a half physiognomic fraction-representations of various people.'

MIT's aeroMorph Technology
'... It falls into that structure like a rubber figure returning to shape.'

Woolim DPRK Surveillance Tablet And Doctorow's 'Schoolbook'
'...cracking my SchoolBook had been easy.' Take heed, North Koreans!

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.